2118369 has 16 divisors (see below), whose sum is σ = 3216384. Its totient is φ = 1227600.

The previous prime is 2118359. The next prime is 2118371. The reversal of 2118369 is 9638112.

It is not a de Polignac number, because 2118369 - 2⁸ = 2118113 is a prime.

It is a super-2 number, since 2×2118369² = 8974974440322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2118349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637 + ... + 2154.

It is an arithmetic number, because the mean of its divisors is an integer number (201024).

2^2118369 is an apocalyptic number.

It is an amenable number.

2118369 is a deficient number, since it is larger than the sum of its proper divisors (1098015).

2118369 is a wasteful number, since it uses less digits than its factorization.

2118369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828.

The product of its digits is 2592, while the sum is 30.

The square root of 2118369 is about 1455.4617823907. The cubic root of 2118369 is about 128.4302133848.

The spelling of 2118369 in words is "two million, one hundred eighteen thousand, three hundred sixty-nine".